mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 05:23:34 +00:00
ba94a1bba3
- Add IXP4xx NPE ethernet MAC support - Add support for Intel IXDPG425 board - Add support for Prodrive PDNB3 board - Add IRQ support Patch by Stefan Roese, 23 May 2006 [This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still sufferes from licensing issues. Blame Intel.]
358 lines
11 KiB
C
358 lines
11 KiB
C
/**
|
|
* @file IxNpeMhSolicitedCbMgr.c
|
|
*
|
|
* @author Intel Corporation
|
|
* @date 18 Jan 2002
|
|
*
|
|
* @brief This file contains the implementation of the private API for the
|
|
* Solicited Callback Manager module.
|
|
*
|
|
*
|
|
* @par
|
|
* IXP400 SW Release version 2.0
|
|
*
|
|
* -- Copyright Notice --
|
|
*
|
|
* @par
|
|
* Copyright 2001-2005, Intel Corporation.
|
|
* All rights reserved.
|
|
*
|
|
* @par
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Intel Corporation nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* @par
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @par
|
|
* -- End of Copyright Notice --
|
|
*/
|
|
#ifndef IXNPEMHCONFIG_P_H
|
|
# define IXNPEMHSOLICITEDCBMGR_C
|
|
#else
|
|
# error "Error, IxNpeMhConfig_p.h should not be included before this definition."
|
|
#endif
|
|
|
|
/*
|
|
* Put the system defined include files required.
|
|
*/
|
|
|
|
|
|
/*
|
|
* Put the user defined include files required.
|
|
*/
|
|
|
|
#include "IxOsal.h"
|
|
|
|
#include "IxNpeMhMacros_p.h"
|
|
#include "IxNpeMhSolicitedCbMgr_p.h"
|
|
#include "IxNpeMhConfig_p.h"
|
|
/*
|
|
* #defines and macros used in this file.
|
|
*/
|
|
|
|
/*
|
|
* Typedefs whose scope is limited to this file.
|
|
*/
|
|
|
|
/**
|
|
* @struct IxNpeMhSolicitedCallbackListEntry
|
|
*
|
|
* @brief This structure is used to store the information associated with
|
|
* an entry in the callback list. This consists of the ID of the send
|
|
* message (which indicates the ID of the corresponding response message)
|
|
* and the callback function pointer itself.
|
|
*
|
|
*/
|
|
|
|
typedef struct IxNpeMhSolicitedCallbackListEntry
|
|
{
|
|
/** message ID */
|
|
IxNpeMhMessageId messageId;
|
|
|
|
/** callback function pointer */
|
|
IxNpeMhCallback callback;
|
|
|
|
/** pointer to next entry in the list */
|
|
struct IxNpeMhSolicitedCallbackListEntry *next;
|
|
} IxNpeMhSolicitedCallbackListEntry;
|
|
|
|
/**
|
|
* @struct IxNpeMhSolicitedCallbackList
|
|
*
|
|
* @brief This structure is used to maintain the list of response
|
|
* callbacks. The number of entries in this list will be variable, and
|
|
* they will be stored in a linked list fashion for ease of addition and
|
|
* removal. The entries themselves are statically allocated, and are
|
|
* organised into a "free" list and a "callback" list. Adding an entry
|
|
* means taking an entry from the "free" list and adding it to the
|
|
* "callback" list. Removing an entry means removing it from the
|
|
* "callback" list and returning it to the "free" list.
|
|
*/
|
|
|
|
typedef struct
|
|
{
|
|
/** pointer to the head of the free list */
|
|
IxNpeMhSolicitedCallbackListEntry *freeHead;
|
|
|
|
/** pointer to the head of the callback list */
|
|
IxNpeMhSolicitedCallbackListEntry *callbackHead;
|
|
|
|
/** pointer to the tail of the callback list */
|
|
IxNpeMhSolicitedCallbackListEntry *callbackTail;
|
|
|
|
/** array of entries - the first entry is used as a dummy entry to */
|
|
/* avoid the scenario of having an empty list, hence '+ 1' */
|
|
IxNpeMhSolicitedCallbackListEntry entries[IX_NPEMH_MAX_CALLBACKS + 1];
|
|
} IxNpeMhSolicitedCallbackList;
|
|
|
|
/**
|
|
* @struct IxNpeMhSolicitedCbMgrStats
|
|
*
|
|
* @brief This structure is used to maintain statistics for the Solicited
|
|
* Callback Manager module.
|
|
*/
|
|
|
|
typedef struct
|
|
{
|
|
UINT32 saves; /**< callback list saves */
|
|
UINT32 retrieves; /**< callback list retrieves */
|
|
} IxNpeMhSolicitedCbMgrStats;
|
|
|
|
/*
|
|
* Variable declarations global to this file only. Externs are followed by
|
|
* static variables.
|
|
*/
|
|
|
|
PRIVATE IxNpeMhSolicitedCallbackList
|
|
ixNpeMhSolicitedCbMgrCallbackLists[IX_NPEMH_NUM_NPES];
|
|
|
|
PRIVATE IxNpeMhSolicitedCbMgrStats
|
|
ixNpeMhSolicitedCbMgrStats[IX_NPEMH_NUM_NPES];
|
|
|
|
/*
|
|
* Extern function prototypes.
|
|
*/
|
|
|
|
/*
|
|
* Static function prototypes.
|
|
*/
|
|
|
|
/*
|
|
* Function definition: ixNpeMhSolicitedCbMgrInitialize
|
|
*/
|
|
|
|
void ixNpeMhSolicitedCbMgrInitialize (void)
|
|
{
|
|
IxNpeMhNpeId npeId;
|
|
UINT32 localIndex;
|
|
IxNpeMhSolicitedCallbackList *list = NULL;
|
|
|
|
IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
|
|
"ixNpeMhSolicitedCbMgrInitialize\n");
|
|
|
|
/* for each NPE ... */
|
|
for (npeId = 0; npeId < IX_NPEMH_NUM_NPES; npeId++)
|
|
{
|
|
/* initialise a pointer to the list for convenience */
|
|
list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId];
|
|
|
|
/* for each entry in the list, after the dummy entry ... */
|
|
for (localIndex = 1; localIndex <= IX_NPEMH_MAX_CALLBACKS; localIndex++)
|
|
{
|
|
/* initialise the entry */
|
|
list->entries[localIndex].messageId = 0x00;
|
|
list->entries[localIndex].callback = NULL;
|
|
|
|
/* if this entry is before the last entry */
|
|
if (localIndex < IX_NPEMH_MAX_CALLBACKS)
|
|
{
|
|
/* chain this entry to the following entry */
|
|
list->entries[localIndex].next = &(list->entries[localIndex + 1]);
|
|
}
|
|
else /* this entry is the last entry */
|
|
{
|
|
/* the last entry isn't chained to anything */
|
|
list->entries[localIndex].next = NULL;
|
|
}
|
|
}
|
|
|
|
/* set the free list pointer to point to the first real entry */
|
|
/* (all real entries begin chained together on the free list) */
|
|
list->freeHead = &(list->entries[1]);
|
|
|
|
/* set the callback list pointers to point to the dummy entry */
|
|
/* (the callback list is initially empty) */
|
|
list->callbackHead = &(list->entries[0]);
|
|
list->callbackTail = &(list->entries[0]);
|
|
}
|
|
|
|
IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
|
|
"ixNpeMhSolicitedCbMgrInitialize\n");
|
|
}
|
|
|
|
/*
|
|
* Function definition: ixNpeMhSolicitedCbMgrCallbackSave
|
|
*/
|
|
|
|
IX_STATUS ixNpeMhSolicitedCbMgrCallbackSave (
|
|
IxNpeMhNpeId npeId,
|
|
IxNpeMhMessageId solicitedMessageId,
|
|
IxNpeMhCallback solicitedCallback)
|
|
{
|
|
IxNpeMhSolicitedCallbackList *list = NULL;
|
|
IxNpeMhSolicitedCallbackListEntry *callbackEntry = NULL;
|
|
|
|
IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
|
|
"ixNpeMhSolicitedCbMgrCallbackSave\n");
|
|
|
|
/* initialise a pointer to the list for convenience */
|
|
list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId];
|
|
|
|
/* check to see if there are any entries in the free list */
|
|
if (list->freeHead == NULL)
|
|
{
|
|
IX_NPEMH_ERROR_REPORT ("Solicited callback list is full\n");
|
|
return IX_FAIL;
|
|
}
|
|
|
|
/* there is an entry in the free list we can use */
|
|
|
|
/* update statistical info */
|
|
ixNpeMhSolicitedCbMgrStats[npeId].saves++;
|
|
|
|
/* remove a callback entry from the start of the free list */
|
|
callbackEntry = list->freeHead;
|
|
list->freeHead = callbackEntry->next;
|
|
|
|
/* fill in the callback entry with the new data */
|
|
callbackEntry->messageId = solicitedMessageId;
|
|
callbackEntry->callback = solicitedCallback;
|
|
|
|
/* the new callback entry will be added to the tail of the callback */
|
|
/* list, so it isn't chained to anything */
|
|
callbackEntry->next = NULL;
|
|
|
|
/* chain new callback entry to the last entry of the callback list */
|
|
list->callbackTail->next = callbackEntry;
|
|
list->callbackTail = callbackEntry;
|
|
|
|
IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
|
|
"ixNpeMhSolicitedCbMgrCallbackSave\n");
|
|
|
|
return IX_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Function definition: ixNpeMhSolicitedCbMgrCallbackRetrieve
|
|
*/
|
|
|
|
void ixNpeMhSolicitedCbMgrCallbackRetrieve (
|
|
IxNpeMhNpeId npeId,
|
|
IxNpeMhMessageId solicitedMessageId,
|
|
IxNpeMhCallback *solicitedCallback)
|
|
{
|
|
IxNpeMhSolicitedCallbackList *list = NULL;
|
|
IxNpeMhSolicitedCallbackListEntry *callbackEntry = NULL;
|
|
IxNpeMhSolicitedCallbackListEntry *previousEntry = NULL;
|
|
|
|
/* initialise a pointer to the list for convenience */
|
|
list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId];
|
|
|
|
/* initialise the callback entry to the first entry of the callback */
|
|
/* list - we must skip over the dummy entry, which is the previous */
|
|
callbackEntry = list->callbackHead->next;
|
|
previousEntry = list->callbackHead;
|
|
|
|
/* traverse the callback list looking for an entry with a matching */
|
|
/* message ID. note we also save the previous entry's pointer to */
|
|
/* allow us to unchain the matching entry from the callback list */
|
|
while ((callbackEntry != NULL) &&
|
|
(callbackEntry->messageId != solicitedMessageId))
|
|
{
|
|
previousEntry = callbackEntry;
|
|
callbackEntry = callbackEntry->next;
|
|
}
|
|
|
|
/* if we didn't find a matching callback entry */
|
|
if (callbackEntry == NULL)
|
|
{
|
|
/* return a NULL callback in the outgoing parameter */
|
|
*solicitedCallback = NULL;
|
|
}
|
|
else /* we found a matching callback entry */
|
|
{
|
|
/* update statistical info */
|
|
ixNpeMhSolicitedCbMgrStats[npeId].retrieves++;
|
|
|
|
/* return the callback in the outgoing parameter */
|
|
*solicitedCallback = callbackEntry->callback;
|
|
|
|
/* unchain callback entry by chaining previous entry to next */
|
|
previousEntry->next = callbackEntry->next;
|
|
|
|
/* if the callback entry is at the tail of the list */
|
|
if (list->callbackTail == callbackEntry)
|
|
{
|
|
/* update the tail of the callback list */
|
|
list->callbackTail = previousEntry;
|
|
}
|
|
|
|
/* re-initialise the callback entry */
|
|
callbackEntry->messageId = 0x00;
|
|
callbackEntry->callback = NULL;
|
|
|
|
/* add the callback entry to the start of the free list */
|
|
callbackEntry->next = list->freeHead;
|
|
list->freeHead = callbackEntry;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Function definition: ixNpeMhSolicitedCbMgrShow
|
|
*/
|
|
|
|
void ixNpeMhSolicitedCbMgrShow (
|
|
IxNpeMhNpeId npeId)
|
|
{
|
|
/* show the solicited callback list save counter */
|
|
IX_NPEMH_SHOW ("Solicited callback list saves",
|
|
ixNpeMhSolicitedCbMgrStats[npeId].saves);
|
|
|
|
/* show the solicited callback list retrieve counter */
|
|
IX_NPEMH_SHOW ("Solicited callback list retrieves",
|
|
ixNpeMhSolicitedCbMgrStats[npeId].retrieves);
|
|
}
|
|
|
|
/*
|
|
* Function definition: ixNpeMhSolicitedCbMgrShowReset
|
|
*/
|
|
|
|
void ixNpeMhSolicitedCbMgrShowReset (
|
|
IxNpeMhNpeId npeId)
|
|
{
|
|
/* reset the solicited callback list save counter */
|
|
ixNpeMhSolicitedCbMgrStats[npeId].saves = 0;
|
|
|
|
/* reset the solicited callback list retrieve counter */
|
|
ixNpeMhSolicitedCbMgrStats[npeId].retrieves = 0;
|
|
}
|